Grinding-machine.



o, RAYBUGK.

GRINDING MAGHINE. APPLICATION FILED JUNE'11,1912.[

` Patented luana@Y 1913.

w oww I4 4I., INN

IIIIII."

l koI/ lshoe calks While theishoes'are'on the hoof,:

UNITED s'iATns.--PATENT QFFICE,

':l im 'i rdimm, @t may concern laying mowing machines, for rsharpening disk plows, 'disk harrows, andk disk drills, tvhile 1n place on the machines, f sharpening horse smoothing floors, andthe like, and has for its object the provision of a grinding mechanism adapted to be secured to a flexible ing part-s in the `several views.

sha-ft; the invention lying principally in the construction of the hand hold for operating the tool.

My invention will be described in detail hereinafter and illustrated in the accompanying drawings, in Which- Figure 1 is a view in elevation of myV improved grinding machine, showing it 1pplied to the fragment of a flexible shaft;

Fig. 2, a longitudinal sectional vieivfand Fig. 3, a cross section through the bearingcasing.-

In the drawings similar reference characters Willbe used to designate correspond- Myimproved grinding machine is adapted to be secured to a flexible shaft indicated at A in the drawings, said shaft being such.

as is ordinarily employed .with the well known hair clipping machines used for A port-ion 4.

animal shearing. Secured to the terminal of shaft A is a bar 1 having its free termi nal threaded as shown at 1a.

2 indicat-es a cup-shaped casing having a concentric threaded socket 2a to receive the threaded end 1a of the bar 1, the rear portion of the casing being provided With a lateral shoulder 3, and a reduced and threaded 5 indicates a disk of abrasive material mounted on reduced portion and provided with a socket 5a to receive a vWasher 6 mounted on said reduced portion 4 and a nut 7 secured thereon. The construction of the disk ferred When the grinding disk is used for smoothing floors, and the like, and the end of the disk is employed in the operatiombut irnnnnsnavisuck, enferman-Krat livrrLLsjrENNsYLvANIA. l i @materne-Mamma'.

A 51A spcification-gf Lenersriatna,

rarenteafii circularaifi'ge 8,`andfan annular'- flange 9.

integrall thereavith 4and surrounding the end of 7bar l'a'nd open toward' the shaftV A.

.Mountedon' the' bar' 1l is a rotatable sleeve 10, havingitsterminal,Within,the annular. -liangejQ 'enlarged as lshown at 11=to snugly itthe. interior thereofand to rotatetherein. The periphery of the venlargement 11 -is Vformed Witha ball' rac'eivaylQ, and the ini te'rior of thefflangej) with aI raceWay 13 opposite thereto.'

14 indicates' anti-friction-bearings mounted in the raceways 12. and 13. The outer face of the enlargement 11 is also formed with an annular raceway 15 and the circular'liange 8 with a raceivayl oppositeto and corresponding with -said raceway 15. 17 indicates anti-friction bearings mounted in raceivays 15 and 1d.

In use it will be understood that my improved grinding machine is Vheld by the sleeve 10 While in operative position, and antifrictional bearings 14 and 17 relieving the friction rotatorily and the thrust, the machine being adapted for grinding either on the -periphery of the disk or itsouter .i

surface as desired, and by' the peculiar construction thereof and its adaptability to be secured to a Flexible shaft, provision is made for grinding edge tools Whiley in place in their mountings, such as. the cutter blades onl the sickle bars of lmowing machines, horseshoe calks on the animals hoofs, and the like.

For the purpose of assembling and dismembering the bar and sleeve I provide the flange 9 with a threaded opening 18 through which the bearing members 14 may b'e re-l moved and replaced, and close said opening by means ofa threaded plug 19 havmg its inner terminal formed with a semicircular 'groove 2O that forms a part of the raceway 13 when in position. 1n dismembering the sleeve 10 and bar 1 the plug 19 is removed from the opening 18 and the bearing members 14.- dumped from the casing therethrough. The sleeve may then be removed from the casing and the bearing members 17- also removed therefrom. In replacing the sleeve the bearing members 17 are rst placed in the raceway 16 in the casing when the bar 1 is in an upright position. The v11a sleeve lO is then placed on the liar and lowered into pcsitioii so that the enlargement. 1L is Within the casing. The bar is then turned on its side with the opening '1S uppermost and the hearing members 14insertedthrough the opening into the raeeivays, 1'2 and The. plug 19 is then `aerewed intnposition.v and the device is in position for uae.

Having thus deeribed in v invention what. I claiinis:

'1. A grindingr machine -euniprisin'g in combination with a flexible shaft. a bar secured to one terminal of said Shaft. a `grinding implement Secured to'said bar. a bearing casing securedto said bar. a sleeve rotatably mount-ed on the bar, and an en-largen'iei'it on one terminal of said Sleeve and rotatably mounted 1n Said easing. v

2. A' grinding machine comprising in' eoinliinatioii With a flexible shaft. a bar secured to said -shaft, a grinding implement secured Vto the liar, a laterally extending .flange nr weh farmed integral with or rigidly secured tu aid bar,l an, annular easing lformed integral ivitli 0r rigidly seein-ed to said web nr flange. the inner surtare (if aid `|asing` andl said flange 0i' web being prni'ided with iaeeivaiY ring. asleeve rotatably mounted 0n said liar, Said sleeve having an Venlarged head on' one nf its terminals andada'pted t0 tit ivitlinthe 'easing aforesaid, sind enlarged head being formed with raee- Way rings eoiyiespnding with the First. inen- '-ti0iied raeeu'ayiingjs. and antifrietinnal bearing,r 'members mounted in said raeeivay,

' GEO. R. BELL,

Dwiuii'iv "iioUrAL-ix. 

